id summary reporter owner description type status milestone component version severity resolution keywords cc 13164 Unable to build Boost.Iostreams with pre-built zlib on Windows listhex@… Jonathan Turkanis "I want zlib to be statically linked to the iostreams library Command line approach: b2 --with-iostreams link=static -sNO_ZLIB=0 -sNO_COMPRESSION=0 -sZLIB_INCLUDE=e:/zlib/include -sZLIB_LIBRARY_PATH=e:/ b/lib -sZLIB_BINARY=zlib.lib -sZLIB_NAME=zlib --debug-configuration After that I get : unresolved external symbol ""int const boost::iostreams::zlib::best_speed"" (?best_speed@zlib@iostreams@boost@@3HB) unresolved external symbol ""int const boost::iostreams::zlib::best_compression"" (?best_compression@zlib@iostreams@boost@@3HB) ... The same situation if configure 'using zlib' in user-config.jam: using zlib : : e:/zlib/include e:/ b/lib zlib : msvc ; and command: b2 --with-iostreams link=static -sNO_ZLIB=0 -sNO_COMPRESSION=0 --debug-configuration" Bugs new Boost 1.64.0 iostreams Boost 1.64.0 Problem iostreams build zlib windows msvc